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Related Experiment Videos

Severe metabolic alkalosis: a case report.

S Javaheri, E A Nardell

    British Medical Journal (Clinical Research Ed.)
    |October 17, 1981
    PubMed
    Summary

    Severe metabolic alkalosis in a patient was managed conservatively. Hypoventilation, indicated by high carbon dioxide levels, compensated for the alkalosis, proving potentially life-saving and highlighting the importance of this approach.

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    Area of Science:

    • Internal Medicine
    • Nephrology
    • Critical Care Medicine

    Background:

    • Metabolic alkalosis is an acid-base disturbance characterized by an increase in plasma bicarbonate concentration.
    • Gastric outlet obstruction can lead to severe metabolic alkalosis due to loss of gastric acid.
    • Understanding compensatory mechanisms is crucial for managing acid-base disorders.

    Observation:

    • A 45-year-old male presented with nausea, vomiting, and abdominal pain.
    • Severe metabolic alkalosis was diagnosed with pH 7.61, PaCO2 11.4kPa (85.5 mm Hg), and plasma bicarbonate 82.0 mmol/l.
    • Gastric outlet obstruction secondary to a peptic ulcer was identified.

    Findings:

    • The patient was treated with oxygen, intravenous fluids, and phenytoin, showing improvement within 48 hours.
    • Surgical intervention was performed for the gastric outlet obstruction.
    • The elevated PaCO2 (hypoventilation) was interpreted as a life-saving compensatory mechanism for the severe metabolic alkalosis.

    Implications:

    • Conservative management of metabolic alkalosis, allowing gradual correction, is emphasized.
    • The parallel normalization of PaCO2 and bicarbonate suggests effective respiratory compensation.
    • This case highlights the critical role of compensatory hypoventilation in severe metabolic alkalosis.

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